Grinding and polishing machine.



F. N. 6: F. E. GARDNER.

GRINDING AND POLISHING MACHINE.

.urmouron FILED APR. 25, 1908.

Patented Jan. 19,1909.

2 BHEETS'BHEET 1.

lu llll l l I l I I ll F. N. & P. E. GARDNER. GRINDING A D POLISHING MACHINE.

AYPLIOATION 1111311123425, 1908.

Patented Jan. 19, 1909.

2 SHEETS-SHEET 2.

UNITED STATEEQBATENT OFFICE.

, FREDERIPK K PPI EREBErEJ GAIiDNER-LQE'BELO a ti n that we, Fnnnnmcx v,N. GARD- disk 15,' said sleeve being held agaanst-longb -.chineshereinafter setorth.

thepUn'ited States, residing at Beloit, the

-coimty-e-of -Rock and State-cf lVisconsin',

ihave invented certain new anduseful .Im-

-girovements g-in I Grinding and .Pnlishing achine's; joif'which'the' following is a specificatlon. v 10 ,This invention relates to'that-c'lass of machine toolslterm'ed disk" grinders, and em loyin'g one or more rotatory --'disks of abra -s1ve"1nater1a1, the work being heldin with' thefaces of said disk 'or-disksz' contact The present embodiment of our' invention comprises two opposed 5 grinding disks be-'" tween which an article to be ground to size is held, one of-said diskshbeing movable toward and away from theotherdiski I The primary .object of the invention is to 'rovide improved means for driving said The invention also refers to the otherpim polishing ima- Y fprovements 'gri'ndin and l'ln the accompanying drawings, 1

pfagrin ng [or polishinglimachine embody} ingfihei-fatures of our invention; 2 is a fra eftental view .takenpfrorh the hand-'si e-of Fig.-*1.' t." I The'embodiment; herein shown of thefin- .ve'ntion is designed for grinding-or polish- -in'g metals, but obviously it maybe used for 'working many other materials.

The machine frame 1, which ybe of any suitable form and construction, carries bearings 2 in which is supported a drive shaft? having a drive pulley 4 fixed thereon intermediate said bearings. Endwise move-j ment' of the shaft 3 is prevented by the c01- hrs 5 and 6. Upon one end of the shaft 3 isfixed a collar 7 to which is secured in any suit-ableway a grindingor polishing d1Sk 8.'-

A k ee brming per -p t e hm fra'ine carries a slide 10 mounted injguide ways 11 in saidknee, said-sllde carry ng-abearing12. Rotaf'ably mountedin the bearin en?! an annular flange l4: to which is secured in any suitableway a grinding orpohshmg tildinal-m'ovement with relation to the bear- I-2'by means of the nuts 16. The sleeve tndinally ofa rqtafably susgpo r snd iSy t i "mesh s-=13:

12. is "a sleeve; 13 having at its fol-ward =We"haveher,ein showii lthe inner-' end ofithe shaft 1'} as reduced:indi-v ameter and "iiirni'shedfwith a 'lefthand screw-thread'ftfifi age in correspondf .rngly screw-threads 'openin ,inflthe", ad ja'cent .end" offthe drive sha 3', In jthis sleeve 13 @and the} aft 17 consistsof a key .18 secured tofsaid fsleeveand fittingwithin akeyway 19 formedin said shaft, It will in it's a guideway Will reduce ainoveinent v :of the disk 15 towar orf awa ifr'o rnftlie disk'fS, fandr thagt bot-h pf said dilsks are driven by the single driving means 1. I

. In the present embodiment .of the invensaid shafticarryingla pinion '21 meshing with a rack 22'fined to said slid, Uponone end -'o,f the shaft 2 0 are ,aldjusta'bly fixed a hand leverj23andjan farm 24, the latter heir; acted upon by'a CQiled'tensionf'spring' 25 cal justably secured at one endpto a'suit-,

' bl lpQint rill. the mai n i a ne, t Ot er end, of "said: spring ihaving a fcqnnection with said arm! The .spring 25 tendsto move the disk 15" away ,from ,the disk 8.

disk-.8 is limited j by means consisting,

portion of" the machine frame, said Lmeans .of a locking screw l 27. e ,3

aft lilwhich is driven froin in; this"? 1 1 screw being :fi'xe'd in adjusted position instance the clrivi'n' connection between the q tion Q'the slide VIO-iS' arranged to be. moved byymeans .com prising als'haft 20 rotata'bly' mounted in su table, .earingsin the knee; .9,

unlstance, of a stop screw 2 mm by the I slide 'IO'and-arranged to impmgeaga nsta'.

The article to;be; rquhdgorfpo ished my be sup iortd u ona" table 28 hori'iont'ally'i The work being free to move horizontally, it is acted upon substantially equally by the disks 8 and 15. y

In the present embodiment the tops of the wheels 8 and 15 are arranged to rotate toward the front, the inertia of the wheel 15 and the pressure of the work holding the shaft 17 in screw-threaded engagement with the shaft 3. WVhen' one .of the disksS and 15 is to be removed, saidshafts are disconf nected, as by holdin and turnin the dis 15 toward the front. After the s iafts 3 and 17 have been d senga ed'from each other, the latter may be sli to the left far enou' hito permit of slipping the disk out from etween the adjacent ends of'said-shafts. The latter may 'be 0 eratively connected by turning the shown at the left-hand side of the drive pulv whee 15 toward the 8 is held stationary.

It is evident'that the mechanism herein rear while the 'wheel ley 4 may beduplicated upon the]. righthand .side thereof, a'nd'fthe four wheels ratel upon each of said shafts, and means for rotating one of said shafts,

'3. A 'grindin or polishing machine comprising two a med shafts separably connected together, an operating member upon each of said shafts, one of said operatin I members being movable longitudinally of its sfhaft, and means for rotating one-of said sha ts. 2

4. A grinding or polishingmachine comprising two bearings, a shaft in each of said said bearin the disk 8 stationary vmentioned shaft, and means bearings, said shafts being alined and separably connected together at a point between an operating member upon each of sai shafts between said bearings, and means for rotating one of said shafts.

.5. A .grindin or polishing machine comprising a rotata le shaft, means for preventmg lon itudinal movement of said shaft, a shaft alined with and separably connected with the other shaft, a movable bearing for the second mentioned shaft, an operatin member rotatably carried by the second mentioned shaft, and movable with said bearing, an operating member upon the first Y or rotating said shafts 6. A grindin onpolishingmachine comprisin a plura ity of Wheels, a sliding support for one of said wheels, a hand lever having a gear connection with said sliding support for moving said support in one directlon, and means for moving said support in the opposite direction.

7. Agrinding or polishing machine comprising a bearing, a shaft rotatable in said bearing, a second bearing alined with the first mentioned bearing, a sleeve rotatable in saidsecond bearing, means for preventing, longltudlnal movement of sald sleeve in said second bearing, a shaft having a separable connection with the first mentioned shaft at a point between said bearings, a driving connection between'said sleeveand the second shaft, a wheel on the first mentioned shaft, a wheel on said sleeve, said Wheels being located between said bearings, afslide upon which the second mentioned hearing is mounted, and a hand lever and a spring for moving said slide.

FREDERICK N. GARDNER. FREDERIC E. GARDNER.

Witnesses: i T. D. WOOLSEY,

F. F. LIVERMOBE.

it is hereby oertifiedthat in Letters Patent No. 909,882, granted January 19, 1909,

Correction Lanes Patent Md. 9091882.

upon the application of Frederick N. Gardner and Frederic E. Gardner, of Beloit, Wisconsin, for an improvement'in Grindingand Polishing Machines, an error appears in "the printed specification requiringcorrection, as follows: In lines 28-29, page 2, the word separately should read separably; and .that the said Letters Patent should be read. withl t-his correction therein that the same may conform to the record of the ease in the Patent Qffice. I p

Signed and used this'9th day of Febrnary,A. 1)., 1909.

' smia c. c. BILLINGS,

Adina Commissioner of Paten s.

The work being free to move horizontally, it is vacted upon substantially equally by the disks 8 and 15. y

In the present embodiment the tops of the wheels 8 and 15 are arranged to rotate toward the front, the inertia of the wheel 15 and the pressure of the work holding the shaft 17 in screw-threaded engagement with the shaft 3. WVhen' one .of the disksS and cent ends of'said-shafts. -The latter may 'be 0 eratively connected by turning the shown at the left-hand side of the drive pulv whee 15 toward the 8 is held stationary. i

It is evident'that the mechanism herein rear while the 'wheel ley 4 may beduplicated upon the]. righthand .side thereof, a'nd'fthe four wheels ratel driven from the pulley 4.

We claim as our invention: ,1. A grinding or polishing machine comprising a plurality of alined shafts sepaconnected together, "an o erat-in mem er upon each of said sha s, and means for rotating'one of said shafts.

2. A grinding or polishing machine comprisin two alined shafts having ascrewthrea connection, an operating member upon each of 'said shafts, and means for rotating one of said shafts,

'3. A 'grindin or polishing machine comprising two a med shafts separably connected together, an operating member upon each of said shafts, one of said operatin I members being movable longitudinally of its shaft, and means for rotating one-of said shafts. 2

4. A grinding or polishingmachine comprising two bearings, a shaft in each of said sun Correction in Letters Pa'tent Md. 9091882.

said bearin the disk 8 stationary vmentioned shaft, and means bearings, said shafts being alined and separably connected together at a point between an operating member upon each of sai shafts between said bearings, and means for rotating one of said shafts.

.5. A grindin or polishing machine comprising a rotata le shaft, means for preventmg lon itudinal movement of said shaft, a shaft alined with and separably connected with the other shaft, a movable bearing for the second mentioned shaft, an operatin member rotatably carried by the second mentioned shaft, and movable with said bearing, an operating member upon the first Y or rotating said shafts 6. A grindin onpolishingmachine comprisin a plura ity of Wheels, a sliding support for one of said wheels, a hand lever having a gear connection with said sliding support for moving said support in one directlon, and means for moving said support in the opposite direction.

7. Agrinding or polishing machine comprising a bearing, a shaft rotatable in said bearing, a second bearing alined with the first mentioned bearing, a sleeve rotatable in saidsecond bearing, means for preventing, longltudlnal movement of sald sleeve the second shaft, a wheel on the first mentioned shaft, a wheel on said sleeve, said Wheels being located between said bearings, afslide upon which the second mentioned hearing is mounted, and a hand lever and a spring for moving said slide.

FREDERICK N. GARDNER. FREDERIC E. GARDNER.

Witnesses: i T. D. WOOLSEY,

F. F; LIVERMOBE.

it is hereby oertifiedthat in Letters Patent No. 909,882, granted January 19, 1909, upon the application of Frederick N. Gardner and Frederic E. Gardner, of Beloit, Wisconsin, for an improvement'in Grindingand Polishing Machines, an error appears in "the printed specification requiringcorrection, as follows: In lines 28-29, page 2, the word separately should read separably; and .that the said Letters Patent should be read. withl t-his correction therein. that the same may conform to the record of the ease in the Patent Qflice. I p a. Signed and sealed this'9th day of, February, A. 1)., 1909.

' C. C. BILLINGS,

Adina Commissioner of Paten s.

Correction in Letters Patent No. 909.882.

It is hereby certified that in Letters Patent N 0. 909,882, granted January 19, 1909 upon the application of Frederick N. Gardner and Frederic E. Gardner, of Beloit, Wisconsin, for an improvement in Grinding and Polishing Machines, an error appears in the printed specification requiring correction, as follows: In lines 28-29, page 2, the word separately should read separably; and .that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 9th day of February, A. D., 1909.

[BELL] c. 0. BILLINGS,

Adina Commissioner of Patents. 

